<html>
<head>
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    .container {
      width: 100%;
      height: 100%;
      display: flex;
      flex-direction: column;
    }

    .header {
      width: 100%;
      height: 80px;
      background-color: white;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 20px;
    }

    .logo {
      width: 100px;
      height: 40px;
      background-image: url(https://img.zcool.cn/community/01c9a55e27a1730000018c1b4b6c6f.png);
      background-size: cover;
    }

    .nav {
      display: flex;
      list-style: none;
    }

    .nav-item {
      margin: 0 10px;
      font-size: 18px;
      color: #333;
    }

    .nav-item:hover {
      color: #1890ff;
    }

    .main {
      width: 100%;
      height: calc(100% - 80px);
      display: flex;
      flex-wrap: wrap;
    }

    .card {
      width: 25%;
      height: 50%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 20px;
    }

    .card-image {
      width: 80%;
      height: 60%;
      background-image: url(https://img.zcool.cn/community/01c9a55e27a1730000018c1b4b6c6f.png);
      background-size: cover;
    }

    .card-title {
      margin-top: 10px;
      font-size: 20px;
      font-weight: bold;
      color: #333;
    }

    .card-price {
      margin-top: 5px;
      font-size: 16px;
      color: #1890ff;
    }

    .banner {
      width: 100%;
      height: 50%;
      background-image: url(https://img.zcool.cn/community/01c9a55e27a1730000018c1b4b6c6f.png);
      background-size: cover;
      display: flex;
      align-items: center;
      justify-content: center;
    }

    .banner-content {
      width: 80%;
      height: 80%;
      background-color: rgba(255, 255, 255, 0.8);
      display: flex;
      align-items: center;
      justify-content: space-around;
      padding: 20px;
      border-radius: 10px;
    }

    .banner-image {
      width: 40%;
      height: 80%;
      background-image: url(https://img.zcool.cn/community/01c9a55e27a1730000018c1b4b6c6f.png);
      background-size: cover;
    }

    .banner-text {
      width: 40%;
      height: 80%;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }

    .banner-title {
      font-size: 24px;
      font-weight: bold;
      color: #333;
    }

    .banner-subtitle {
      margin-top: 10px;
      font-size: 18px;
      color: #666;
    }

    .banner-button {
      margin-top: 20px;
      width: 120px;
      height: 40px;
      background-color: #1890ff;
      border: none;
      border-radius: 5px;
      font-size: 16px;
      font-weight: bold;
      color: white;
      cursor: pointer;
    }

    .banner-button:hover {
      background-color: #40a9ff;
    }
  </style>
</head>
<body>
  <div class="container">
    <div class="header">
      <div class="logo"></div>
      <ul class="nav">
        <li class="nav-item">手机</li>
        <li class="nav-item">配件</li>
        <li class="nav-item">Flyme</li>
        <li class="nav-item">App</li>
        <li class="nav-item">社区</li>
        <li class="nav-item">服务</li>
      </ul>
    </div>
    <div class="main">
      <div class="card">
        <div class="card-image"></div>
        <div class="card-title">魅族21</div>
        <div class="card-price">¥4157</div>
      </div>
      <div class="card">
        <div class="card-image"></div>
        <div class="card-title">MYVU</div>
        <div class="card-price">¥800</div>
      </div>
      <div class="card">
        <div class="card-image"></div>
        <div class="card-title">Flyme10</div>
        <div class="card-price">¥275</div>
      </div>
      <div class="card">
        <div class="card-image"></div>
        <div class="card-title">M CHILL ACA Mini B...</div>
        <div class="card-price">¥628</div>
      </div>
      <div class="card">
        <div class="card-image"></div>
        <div class="card-title">魅族智能家居...</div>
        <div class="card-price">¥537</div>
      </div>
      <div class="card">
        <div class="card-image"></div>
        <div class="card-title">螺旋升降台灯...</div>
        <div class="card-price">¥2275</div>
      </div>
      <div class="card">
        <div class="card-image"></div>
        <div class="card-title">熊猫吸尘器...</div>
        <div class="card-price">¥3122</div>
      </div>
      <div class="banner">
        <div class="banner-content">
          <div class="banner-image"></div>
          <div class="banner-text">
            <div class="banner-title">魅族 20 Classic</div>
            <div class="banner-subtitle">12月登场 | TWS 蓝牙耳机</div>
            <div class="banner-button">购机立减 ¥200</div>
          </div>
        </div>
      </div>
    </div>
  </div>
</body>
</html>
